Before you go off "half cocked", some real research is in order.
http://archive.org/details/MilitiainHistoryAndToday
The Militia is all men over 18 and able-bodied. This is distinct from a standing army, who are professional soldiers, and illegal under the Constitution (except for the Navy.) There is simply no other legitimate interpretation.
"Well regulated", by the way, means "well equipped" -
i.e., equipped according to Army regulation. This means that the Militia is to have the same standard weapons as any "well" equipped individual soldier.
The Supreme Court has affirmed that this applies to individuals.
http://archive.org/details/FreedomKeys-ACollectionOfGunQuotes
By the way, there are very good reasons we are to have a Militia and NOT a standing army. Mainly, standing armies consume a nation's wealth, foster endless imperialism, and are eventually used to oppress the very people they were formed to "protect."
To wit:
http://archive.org/details/gunControl-WatchWhatHappensWhenGunsAreBanned
http://archive.org/details/56MillionExterminatedUnderTheGuiseOfGunControl
http://archive.org/details/TheHistoryOfGunControl-FullLengthFilm
Besides which, 2,000,000 violent crimes are PREVENTED every year because of individual gun ownership. This far far exceeds the number supposedly "caused" by it.
http://archive.org/details/MoreGunsMeanLessCrime
http://archive.org/details/ObamaCaughtInGunHoax
Have a good day.